It is a very positive action what you have done registering to Dmoz. It is one of the biggest directories. Unfortunately it takes some time before you could see any real results, you r question was how long it might take, there is no specific timeline, but judging from my experience I could say that it normally take from a few days to a few weeks, rarely more than a month or so. Good PR however takes longer than that and is not only associated with listing your site on a major directory.

DMOZ (from directory.mozilla.org, an earlier domain name) is a multilingual open-content directory of World Wide Web links. The site and community who maintain it are also known as the Open Directory Project (ODP). It is owned by AOL but constructed and maintained by a community of volunteer editors.

Here are some tips for DMOZ listing;- submit your site to a proper category;- make your sure that your site has original and quality content;- get your website professionally designed;- be sure to put your conatct information on the website;- check your website for broken links and spelling errorsd.

Achieving a DMOZ listing is like getting a big thumbs up that your website is legitimate, trustworthy and not illegal or scammy. Google and other search engines are always looking for signals to determine whether your website is trustworthy enough to show up in the search results.